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Korolek [52]
4 years ago
9

How are average I.Q.s related to normal distributions?

Mathematics
1 answer:
kari74 [83]4 years ago
4 0

Answer:

A standard devation of 15 means 68% of the norm group has scored between 85 (100 – 15) and 115 (100 + 15). In other words, 68% of the norm group has a score within one standard deviation of the average (100). Also, 95% of the norm group has an IQ score within two standard deviations of the average

Step-by-step explanation:

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The midpoint AB is M (-1,1). If the coordinates of A are (-6,-3), what are the coordinates of B
Ratling [72]

Answer:

coordinates of B is ( 4,5)

Step-by-step explanation:

If there two points (x1,y1) and (x2,y2) on a plane then coordinates of mid point is given by

m = (x1+x2)/2  , (y1+y2)/2

Given

m = (-1,1)

A= (-6, -3)

we have to point b

let point b be (x,y)

Then m (-1,1) is given by (-6+x)/2 , (-3+y)/2

(-6+x)/2 = -1

-6 + x = 2*-1 = -2

x = -2+6 = 4

also

(-3+y)/2 = 1

=> -3 + y = 2

=> y = 2 + 3 = 5

Thus , coordinates of B is ( 4,5) answer

5 0
3 years ago
Find the inverse of y= 2x^2-8​
ahrayia [7]

Answer:

f

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Step-by-step explanation:

4 0
3 years ago
Help and I'll give someone brainliest<br> simplify (a^-2b^2/a^2b^-1)^-3
never [62]

Answer:

\frac{a12}{b3}

Step-by-step explanation:

Hope this is right and helps you!

8 0
3 years ago
Read 2 more answers
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stiks02 [169]

Answer: 150

Step-by-step explanation:

Let x be the unknown number

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that is; 12/100 * x = 18

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6 0
3 years ago
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seraphim [82]
The correct answer is: The two expressions are not equivalent because they do not always have the same value when any value is substituted for k.

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3 years ago
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